2 points | by beardyw 12 hours ago ago
5 comments
Is there a more direct or elegant solution than reducing it to a quadratic equation?
By the way r=6 is also a solution, if we treat the diagram a bit more abstractly.
Yes, couldn't visualise that!
-6
It was revealing to me how long it took me to work it out.
Is there a more direct or elegant solution than reducing it to a quadratic equation?
By the way r=6 is also a solution, if we treat the diagram a bit more abstractly.
Yes, couldn't visualise that!
-6
It was revealing to me how long it took me to work it out.